Pole-puncturing machine



. 'Sept 18 1923. 1,468,484

` J. E. LYNCH ET AL POLE PUNCTURING MACHINE Filed Aug. 29, 1921 7 Sheets-Sheet l M Sana/ZZ Sept. 18 1925 Filed Anz. 29. 1921 J. E. LYNCH ET AL POLE PUNCTURING MACHINE 7 Sheets-Sheet 2 @Mfg 2% Sept. 18 1923.k K HgASL Y J. E. LYNCH ET Al.

.POLE LPUNCTURING MACHINE Sept. 18,l 1923. 'L

J. E. LYNCH ET AL POLIE: PUNCTURING MACHINE Filed Aug. 29. 1921 ''Sheets-Sheet 4 J. E. LYNCH ET Al.

Sept. 18 1923.

POLE PUNCTURING MACHINE www 5:

fw if@ 7 Sheets-Sheet 6 Filed Alli. 29 1921 J. E. LYNCH ET AL Sept. 18

POLE PUNCTURING MACHINE Filed Aug. 29 1921 7 Sheets-Sheet 7 Patented Sept. 18, 1923.

JAMES E. L-Z'NOH ANDA BaSANDT, OF MINNEA'OLIS, MNNESOTA, ASSIGORS TO PAGE &-HILL^COMPANY, OF, MENNEAPOLIS, 'Ii-'IINNESOTA, A CORPORATION OF V:MINNESO'JA. i i

. j application inea August ze, 1921. serial no. 496,651.

To all whom t magno-nona.' ,Y f Be it known that we, JAMES E. LYNCH and ARTHUR R. SANDT, 'eitizensfof the United4` Sta-tes7 residing at Minneapolis, 'in the county "of Hennepin and State offMinnesota.- have 'invented certain new anduseful Improvements in PolePunct'uring Machines; and we do hereby declare'the following to bea-full, clear,` 'and exact descriptiony of the invention7 such as willen'able others skilled in the'art to which it appertains to make and use the same.V l

Our invention has for its object to provide a highly efficient-machine for producing surL face puncturesjor indentations in Wooden ipoles, thereby adapting the saine1 at the punctured areas, to absorb creosote, or other woodpreserving material",` to a very conf siderabledepth.` i

Generally' statedgthe invention consists of the novel devices and combinations of devices Y hereinafter described* and VVdefinedin the 'largerand long wooden poles,

claims. This improve-dv -puncturing machine is ferent kinds and :sizes ofY wooden poles Vor posts/but has beenespeeially,designed and particularly adapted for use inpuncturing such as telegraph'poles.

that-wooden poles or posts, `set into the K ground,V arey subjectto the Amost rapid decay at the surface of the ground and for a short distance below and abovethe ground. This improved machinefhas, therefore, beenespecially designed to; perforatetelegraph poles and the like'around such areas, but of course7 may be readily adapted to apply'the punctureswherever they may be desired.

'A commercial forni of th'e'puncturing machine orapparatus is illustrated in the accompanying drawings7 wherein like char.- acters indicate like parts throughout the several views; Y

Referring to the drawings: y c

Fig. 1 is a side elevation illustrating the complete machine,A sonne parts being broken awaygffV f Y Fig. 2 is a horizontal .section taken approximately on the vlineQf-Q.ofFig 1some parts being broken away;

- Fig. Svisan enlarged transverse vertical,

section ltaken on the-line of Fig/1;

v Fig. Y6 isa transverse vertical section taken approximately on the line 6 6 of Fig;

Fig. 7 is a-deta-il section taken approximately on the line 7 7 of Fig. 5;

"'Fig. 8 is a transverse vertical section taken on the line 8,-8 of'Fig. 5;

Fig. `9 is a view partly in side elevation and partly in vertical section taken on the line 9 9 of Fig. `8; Y 'i Fig. 10 is'a fragmentary oblique section taken approximately on the line 10-10 of Fig. 8; e

Fig. 11 is a section taken on the line 11-11 of Fig.` 1v;

Fig. 12 is a perspective showing .punches and (1o-operating clamping bars removed from the punch-head; 4

`Figvlis a fragmentary perspective corresponding to 12;,but showing a modiiiedrform of the punches; c

14C is a perspective showing a detached punch in modified form;

' Fig. 15 yis a detail in section illustrating Y a modified form of punch-head and punch lt is a fact demonstrated by experience,v

vthe pole free for easy rotation, vthe tru-ck frame 17 is provided with transversely spaced Vedge-wise aligned pole Asupporting wheels 20, (see particularly Figs. land 11). Mounted in a pit, beyond one end of the track 19,7is a bed framel, on the far end of which, is supported. a ,rigid skeleton main frame 2Q. preferably made from trussed commercialsteel. 1' Y iVhen delivering a pole to thepuncturing machine, it will preferably be', nearly balanced on the supporting wheels Q0 of the truck, but with the Aheaviest end of the pole presented to the machine. This `relatively heavy end ofthe pole, when delivered to the machine, Will be supported by` peripherally vtoothed-pole rotating and supporting Wheels V23, best shown in Figs. 1 and 3."These Wheels 23. are secured to short shafts 24 journaled in .the outer ends of arms 25, which arms, at their inner ends, are pivoted on a longitudinal shaft 26, journaled in suitable bearings 27 Von the `bed frame 21.V The arms 25, (see particularly Fig. 2) are bi- A furcated at their outer portions so that they embrace` the toothed Wheels 23 and are bifurcated at their inner endsv so that their bearings onthe shaft 26 are interlapped. fThe shaft 26 Vcarries a spur gear 28 that meshes With spur gears 29 on the shafts 24 Veo so that the t-Wo'toothed Wheels 23i`xvill be.

simultaneously rotated at the same speed and in the same direction. v Y

The toothed Wheels 23 Vare made adjustable toward` and from each other by oscillatory movement of the arms 25, and toadjustablysupport these arms, the outer ends of thelatter connected byrlinks 30, (see Figs. 2 and 3), to crank arms 31l secured to vrock shafts 32 journaled in suitable bearvings on the bed frame 21. These shafts 32,

at theirV rear ends, are provided With Worm gearsv 33 that -mesh with Worms 34 on a cross-shaft 35 journaled in bearings 36V on the vbedframe 2.1. VWorm shaft 35, as shown, v,is provided, at one end, with a bevel gear 37 that meshes with av bevel Vgear 38'on the .piece 40.

loiver. 'end of an oblique operating shaft 39, Which latter, as shown, extends through a bea-ring' on the main frameV 22 and is Vprof vided, With an operating Wheel or hand- The gear 2301i shaft meshes with a small pinion 41, journaled in suitable bearings on the bed frame 21 and provided with aWorm gear 42.- (See particularly Figs. 2 and 3.) VVorm gear 42 isV driven by a Worm carried by a short transverse countershaft 44. [Shaft 44 is journaled in bearings von bed frame 21 with freedom forrotary Aand slight endwise movements, and at one end, said shaft is tion Wheel 46.

For driving this face friction Wheel 46, a peripheralfriction .Wheel 47 is keyed to slide upon, but to rotate with, a longitudinal driving shaft 48 journaled in suitable bearings 49,011 the bed frame 21. (See Figs. 1, 2 and 3.) Atuits rear end, shaft48 has a pulley 50 over which runs a belt 5l. The upper portion off this belt, (see Figs; 1 and .4), runs over a pulley 52 carried by the VeX- Y tended armature shaft 53 of an electric: motor 54, which latter is suitably mounted on an f Aupperpoition ofthe main frame 22. Arma- AVture shaft 53 also carries a spur pinion for a purposewhich will presently appear, and its extended end is adapted to be connected by an ordinary friction for cone clutch 56 adjacent to the lever 59.1V

provided With a face fricto a punch driving shaft57 Vjournaled in theV bearings 58, on the main frame 22. Y (See Figs. land 4.)

The friction wheels 46 and 47 afford a variable speed transmission device and the shift-y able peripheral friction Wheel 47 isadapted to be set onthe shaft 48" toward and from `the'aXis of .the Wheel 46, Vforthe transmission of k'different speeds, bythe manipulation of alever 59 pivote'd to the bed frame 2l and connected to' a shifting rod GO, they front end of :vvhijchihas a .forked head that engages the grooved hub ofsaid Wheel 4. f .Y 'f v,

The face `*friction Wheel .4G-is adapted to be moved inor out ofdriving engagement with thexperipheral friction Wheel 47 by manipulation of a toggle (B24-.63.n The toggle member `62 is pivoted tothe bedframe 2lv While the togglemember63 is pivoted; to the free end ofa ,shifter levjer.6l4. This shifter. lever 64 is pivoted-to a projection 21l ofV Vthe frame 2li and its intermediate Vportion is swiveled to theV shaft144,between collars 44a ofthe latter. (YSee`Figsl2an'd 3.) e In'thearrangement illustrated,` the toggle member 62 has an extended end'connected' by a link 65 to the `lever66 thatis` pivoted to the bed frame 21,V and the free end of this lever 66 is jointed to. an .upright lever 67 also'pivotedto the bed: frame 2l and located V(See particularly Fig; i), Y

slightly past adead center, thereby holding the facefriction Wheel '46 pressed Vinto fric'- tional driving engagement with the peripheral friction Wheel 47;V but when, by manipulation of lever'?, said toggle is buckled, the! tivo .friction Wheelsmwill be released4 from driving. engagement i so 'that they lare thus caused toV perform the additional functions of a clutch, or'in-and-out of geardevice.

.For .operating the Aclutch 56"a pivoted Y shipper lever 68 is -connected to the movable clutch member and, as shown, -isconnected by links 69 tothe upstandingarm -70- of a rock shaft 71 journaled in suitable bearings tal-ly disposed frame, tln'esicles. of which, Vat their-rear ends, are pivotally connected rto Vthe main frame 22 bya transverse pivot 19W? 'beam `74: Which,V as! preferably 'con- '1,25

shaft 75, as best shown in Figs. 1 and: 4Q. rl'his beam 74: overliesand projects beyond the pole turning wheels'28. Said beam'is adapted to be raised and lowered bysuita-ble means, such as, a hydraulic cylinder and`pis ton mot-or 76, the `cylinder ot which is anchored to the main frame 22, and thepiston or" which has an extended rod 77 at-I tached to a cross-bar 78,' the ends oit `which are pivoted to the side offthe beam 74; by heavy shackle-bolts7 9 or-other suitable de-` vices. Y f Y The hydraulic motor 76 maybe operated by an ordinaryrotary hydraulic pump 80, ,connected to thecylinder thereof by a pipe 81 in which is a three-way controlling valve 82 of Well known construction'.

'fic

V`The rotor of the hydraulic pump 80 is carried by the front end oi'a shaft 83, (see particularly Fig. 4), journaled' in suitable bearings 85 on the frame 22 and provided, at its rear end, with a spur gear 86 that Vmeshes with the pinion on the -armature shaft 58 of the-motor 5&1. Bythe means just described, the tree forwardly* projecting end of the cantilever bearn- 7 l, and parts carried thereby, may be raised or lowered, at will.

.Rigidly' secure'dto the front endsV of the sides of 'the beam 74 byineans otwangle brackets 87, is a transversely extended curved rail 88 and below this rail-'and ex* tendingrearward thereof, is affloating Atrame 89, shown as of rectangular `angle steel struc# ture. This frame 89, ait the rear, has a rigidly secured bracket 90to which is rigidly attachedY an upwardly projecting stem 91 tha-tis swiveled in a head-blo`cki92`. The

head-bloei; 92: has projecting trunnions 93` by means of which it is pivoted for forward and rearward swinging 1 movement in the 'flanges of angleV brackets 94rigidlygse'cured to a crossbeam 95, which, in turn, is rigidly attached to the cantilever beam 7 l by gusset plates 96. (See Figs. 5 and 6.) Thestem x 91 has a head 97 that limits its downward movement through the swinging block 92.

Near its front Yend-the floating trame 89 is hinged to Vshort slotted links 98 thatl are loosely pivoted at 99 to traveling hanger `brackets 100. \These brackets 100. are bent tol overlap the upstandingflange or4 the curved rail 88,'afnd they are provided withV wheels 101 and 102, the former of which run upon, and the latter of which ,run under the horizontal flange of the rail 88. -lThus, the so-ealled floating frame 89 is hung from the beam 711 with freedom for vertical-movement and for limited lateral traveling movements, all for an important purpo`se,which will hereina-terjappear. Y. Y At its front and rear ends, thelioating frame 89 is providedwith depending,"so

called, saddle-bars 103 that :arewcurvedg in vertical plane, and as showin'are madeup of laterally spaced flatnietal straps 'having intervening anti-friction rolls 104 for direct -engagement"with the upper surface of the The puncturing device which is carried t directly by the floating frame 89, is made up of a plurality of independent units, located side by side,rand capableot slight independent vertical 4movement to adapt themselves to the irregularities. in the underlying sur- 'faces of the pole." Each `such unit, as shown, has its own p independent cast casing 106 made up of a multiplicity of rigidly connected sections. rlhese casings are independently pivoted onV the shaft 107, (see particularly Figs. 5, 8, 9, and 10), journaled in the ends of theV floating frame 89. The Jfree or extended portions ot the casings 106 are provided with stop lugs or projections 108 that are engageable with one side ot the trame 89 to limit the downward movements I of said `casings, iii respect -to said trame.

lllorking withinthe Aupper portion, et' these casin'gs106 and journaled thereto by trunnions 109, are crank disks 110 and 111that carry a wrist pin 112. .Theso-called .crank Vdisk 110 is in the'form of a gear that meshes with `an intermediate gear` 118 jouriialed within 'the casing. The gears 113 of the several units are driven by pinions 114ccarried Vby, the common shaft 107. Y

i The Wrist pins 112 are connected by crank vrods 1 15 tc punch-heads 116 that work freely `within the lower portion of the respective casing 106.Y At their lower portions, the

casin'gs '106i are provided with rounded or reversely beveled pole-engaging surfaces 117 that are adapted to ride directly on the up'- per surface of the pole.

The punches that produce the punctures or indentations in the pole may take various different forms according to the extent ot .saturation desired or depending upon the nature of the wood of the pole to be puncw tured.' The punches 118 shown in Fig. 12 are flat, -dull edged, V -shaped steel elements toi-med with rectangular Shanks 119 and upper end flanges 120. The shanks of these punches are arranged to be clamped between stili clampingbars 121 and 122, detachably connected by machine .screws 123. The punch-head, best shown in Figs. 8 and 9,` at its lower end, is formed with a transverse seat into4 which the connected bars 121 and 122'withfthe applied punches 118, are adapted to be slid endwise, and the said bars are shown, `as'l provided withV lock flanges 121 to fit grooves in the punch-head 116. ldlhen a wedge strip 125 is driven into the seat of the head 116, as `shown in Figs. 8 and 9, the

punch-equippedbar willbe securely locked to the corresponding punch-head and the projecting ends of saidbar will then be `free to work verticallj7 in slots 126. "(See particularly Fig. 9.) A

The :construct-ion;illustrated in F 18is like that illustrated inFig.` 12, except that the punch points 118:L are formed with sharp v points and sharp edges.

The punch 118b shownV in Fig. 14 is a straight-rectangular element having al dull, but slightly point/ed end V w Y .'Fig. 15 shows the punches 118 clamped 15 between dovetailed Vclamping bars.127 and 128 which lit a dove-tailed seat in the punch- ,head 116 Vand the numeral 129 indicates a wedge strip driven into saidV seat over `the ltops ot the bars 127 Vand 128. With this arrangement, the drivingof the wedge129 Vforces the dove-tailed clamping bars 127 and 128 downward and tightlyclamps the same against the punches 118. j i Y VPreferably,AV the punches 118 are-alter- -nately odset so that they produce a staggered row of punctures Y1 in the polegfY, as,

forV example, illustrated in Fig. 16.

The punch driving shaft 107is driven from the already noted shaft 5,7. through a jointed'sha'ft 130 that is connected toysaid shafts 57 and 107, respectively,by univer- Vsal oints 131 and 132. (See Figs'. 1, 4 and` 5.-)

In Fig. 1, thepnurnerall indicatesfa liquidcontaining tank suitably supported Vfrom the Vmain Vframe 22, and supplying liquid to the rotary pump V8()Y through a pipe 134.

The numeral 135 Vindicates a center pinV suitably mounted onthe main frame 22 and Y'adapted to engage the adjacent end of the pole Y at its axis. This center pin is Vshown as provided with an offset scratch-all which, `underrotation of the pole, will scratch 'or 'marka circle on the end .of the pole serving Vto indicate when the pole has been given one complete rotation.

Y Operation. j j l By manipulation of the hand wheel 40 V and through connections already described,

the toothed pole rotating wheels 23 may beV raised, lowered, and properly spaced for the particular pole that is to beV punctured.

Then, when thefsaidV wheels 23 vare driven,

the pole will be rotated.V

. While the pole is being set into position on. the wheels 23, the eXtendedend of the beams 74 should be raised so as to liftcthe puncturing device clear Vof the pole. The beam 74 will be raised, as above stated, when liquid from the-pump 8O is delivered to the cylinder 76, which operation has valready Y been more. fully described. Y

When the beam 74 is lowered, the puncturing device will be lowered until thev roller-equipped 4saddle bars'103 rest upon the pole and the bearing' surfaces 117 of the Y 1,4eegas4 independently' movable casings 106 also rest upon thevupper surfaces of the pole. TheV free end of the beam Z4-should be lowered to such anextent that the floating frame 89 will be' free to rise and fall slightly, thereby permitting the punching device to adapt itself to irregularities in the pole. p. i V Y `The puncturingdevice and the wheels 23 should be simultaneously operated, the for# `'mer byclosing .the clutch 56 andthe latter by engaging the face friction wheel`46V with the peripheral friction wheel 47 Vhen the puncturing device is thrown into action,}the

Vseveral cranks 112 willV bel siniulftaneously rotated; the,v punchihead 116 V,will 'be vertically reciprocated and-the punches 118 will the pole, whilethe Vlatter -is being rotated; One complete rotationl of the pole, while the punches are in* action, will produceV the proper-.puncture in thepole. However, theV number and closenesso'f the perforationsV made' vin thek pole, orfrotation thereof, may

i be varied by'varying the lspeed of rotation;

The `two roller-equipped V.saddle jbars keep the punching'units zcenteredover the upper vsurface of the poleoand, as one of said bars is pivoted, the two saddle bars will adapt them's'elvesto all sorts Vof irregularities in the Y pole. Moreover,.t he wheels 101Vmay travelonthe rail 88 and the floatingV frame 89.1nay move both laterallyiand vertically andthe several punching units may independently move vertically; as'V already described, -sothat-the punching devices are universally adjustable ,to all surface irregularities in the pole-:andthe punches will be,V

'kept always Operative Centrally' 01.1 theuPPer surface of` the pole. Y

Ofcourse, the joint :shaft 1807perrnits the jlloating frame and the punching device to Vproduce the punctures Y1 inthe surface of raise, lower, oscillate and. move laterally,

while properly transmitting the punch-driving'power. i

The above described vmachine or apparatus, ,while capable of large range of usage, is

especially adapted for rapidly and'econo-v mically puncturing-long and heavy poles or "logs, Vsuch las telegraph poles.

Broadly considered, the so-c'alledcasings 106 are head frames that independently supmeans for supporting and rotating a pole,

and a power-driven puncturingdevice arranged to puncture the suracexof the pole while it is being rotated,'said'puncturing device compllSlIlg agpluralty of adjacent units `and from the pole to adapt themselves to ir-V regularities in tlie pole.

3. The construction dened in claimV l' combined with power transmission mechanism Wliereby the speed of the puncturing device and poleretating means may be varied, tlie one in respect to the other.v

el. The combination with means for supporting and rotating a pole, of beam overlying said'pole, and a power-driven puncturing device suspended from said beam by connections permitting the 'same to drift or travel laterally during the puneturing opera-A tion. Y Y

5L The structure defined in claim-4; in Wliicli said punching device is provided with roller equipped saddles directly engageable with tliepole. V

6. The combination with means for supporting and rotating tlie pole', of a beam overlying the pole, a floatingframe loosely supported from said beam,V and a powerdriven puncturing device mounted on said floating frame and operative on the pole Wliileit is being rotated.

7. The structure defined in claim 6, in which said floating frame, at its ends, is provided with pole-engaging saddle bars.

8. The structure defined in claim 6, in

which said puncturng device comprises a plurality of puncturing units capable of limited independent vertical movement.

9. The structure' defined. in claim 6. in furtherconibination with roller-equipped pole-engaging' saddles on said floating frame, and means for raising and lowering said beam.

l0. The structure defined in claim 6, in which said puncturing device comprises a common driving shaft, a plurality of head frames located side by side and independently pivoted on said driving;a shaft, cranks journaled on said liead frames, and puncliequipped lieads movable over said liead frames and driven from the respective cranks.

1l. The structure defined in claim 10, in Which said floating frame has roller-equipped poleengaging saddle-bars and said' casings7 in the vicinity of the punch-head, having polefengaging surfaces.

l2. The structure defined in claim l1, in which one of said saddle-bars is mounted for oscillatory movements in respect to the other.

In testimony whereof We affix our signatures.

` JAMES ELYNCH,

ARTHUR R. SANDT. 

